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Finding the Fourth Proportional to 168,687.80, 253,034.40 and 44,028.80

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Solution

The fourth proportional to 168,687.80, 253,034.40 and 44,028.80 is: 66,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,687.80 : 253,034.40 = 44,028.80 : x
  2. Step 2: Convert to fraction form
    168,687.80/253,034.40 = 44,028.80/x
  3. Step 3: Cross multiply
    168,687.80x = 253,034.40 × 44,028.80
  4. Step 4: Simplify right side
    168,687.80x = 11,140,800,990.72
  5. Step 5: Solve for x
    x = 11,140,800,990.72/168,687.80
  6. Step 6: Final answer
    x = 66,043.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.